Performance Prediction of Hybrid Integration Detector for Radar Moderately Fluctuating Rayleigh Targets

In this letter, we address the performance prediction of the hybrid integration detector for radar moderately fluctuating Rayleigh targets in thermal noise. Initially, the moderately fluctuating Rayleigh target model is defined as a general form of well-known Swerling I and Swerling II models using an exponential correlation function. Based on this, an exact closed-form expression of detection probability for hybrid integration detector is derived. In extreme conditions (correlation coefficient is 1 or 0), the derived expression can degrade into the classical formulas, confirming it's validity. Finally, numerical examples are presented to verify the effectiveness of the derived theoretical model and to analyze the issue of optimal hybrid integration detector.